Hand-derrick.



J. L. TAYLOR.v

HAND DERRIGK.

APPLICATION :FILED 00T. 1, 1910.

Patented Sept. 1 2, 1911.

2 SHEETS-SHEET l.

Il `I7`- Aflomey J. L. TAYLOR.

Patented Sept. 12, 1911.

` '2 SHEETS-SHEET 2.

. fzorlzey IIIy JOHN L. TAYLOR, 0F PORTLAND, OREGON.

HAND-DERRICK.

, Specification of Letters Patent.

Patented Sept. 12, 1911.

Application filed October 1, 1910. Serial No. 584,895.

To all 'whom t may concern:

Be it known that I, JOHN L. TAYLOR, a citizen of the United States, residing at Portland, in the county of Multnomah and State of Oregon, have invented certain new and useful Improvements in Hand-Derricks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in hand derricks and the object in view is to produce a simple and efficient device of this nature so constructed that it may be conveniently taken apart when desired.

The invention comprises various details of construction and combinations and arrangements of parts which will be hereinafter fully described and then specifically defined in the appended claims.

I illustrate my invention in the accompanying drawings, in which zn Figure 1 is a perspective view showing the device put together. Fig. 2 is a similar view showing the swinging beam in readiness to be applied to the post for supporting the same. Fig. 3 is an enlarged sectional view transversely through one of the swiveled connections between the beam Vand post and Fig. 4 is a cross sectional view through the post and members in which the swinging derrick is mounted.

Reference now being had to the details of the drawings by letter, A, A designate the base beams of the apparatus which are mortised together and securely braced by the bracket members B2 which are angular shaped and fastened by means of lag screws, bolts or other fastening means, and rising from the meeting ends of the beams is a post B. Fastened to the upper faces of said beams are the metallic plates B which abut against said bracket members and are held in place upon the beams by means of bolts or lag screws C. An angle iron C2 is placed diagonally across the adjacent edges of said brace beams and is engaged by a rod C, designed to be attached to a stationary object, not shown, and serving to securely hold the apparatus to the object upon which it rests. Suitable braces D are secured at their upper ends to said post. Complemental swivel bearing members E, E which have grooves E2 in their outer edges arey ceive bolts E3 passing therethrough and also` through the post. A beam G, which may be of any suitable material and size, has

fastened to its lower end a bearing member G with two parallel flanges G2 which en gage the opposite edges of the beam G, and a concaved bearing member, designated by letter G3, is formed integral with one end of said member G and is swiveled in the groove formed by the two complemental bearing members above referred to.

It will be noted that a space intervenes between the'bottom of the member G and the end of the beam to which it is fastened and within said space and between the flanges G2 is positioned the forked end H of a bracket member H', which latter is bolted to the beam G, and a pivotal pin H2 is mounted in said forked end of the bracket member and an anti-friction roller H3 is journaled upon said pin and is adapted to bear against the upper flanges of the bearing members E, E to distribute the weight of the beam G. An angle iron H4 is fastened by bolts to the members G and also `to the edge of the beam G, while a bar H5 jis fastened to the opposite edge of the beam G and to which the bracket member H is fastened. Suitable bars, designated by letter I, are fastened by bolts to the opposite faces of the beam G and their lower edges are in contact with the marginal edges of the member G and serve to prevent the ,same from shirring or rocking.

A cap, designated by letter K, is fastened to the upper end of the beam G and said cap is recessed and plates or bars K are bolted to the beam and engage said cap and also serve to securely hold the same from rocking thereon. Integral arms K2 project from said cap and have pulleys K3 journaled therein and about which the cable K4 is adapted to pass.

A second set of complemental bearing members, designated by letter J, which are provided with circumferential flanged grooves, are fastened to the post parallel with the bearing members E, E and adapted to receive the concaved end N ofthe plate` N which is pivotally mounted upon a bolt' N2 passing through the plate N3 upon the;

5 beam' G. VRising from said plate N are theA parallel plates VOV in which ka winding drumi Q is journaled, having a longitudinal aperv ture therethrough which is angular to re' ceive the angular shaft Q', and about which drum lthe cable K4` is adapted to wind. A' socket member P is adapted to receive one end of said angled shaft to which it is fastened and which member 'P has a forked end P', the arms ofwhich are apertured for the reception of the shank portion R of the handle R.

A bail-shaped bracket member S has its "m ends bent atangles and journaled in apertures in said parallel plates and serves to be moved frictionally against the flanges of the drum to regulate the speed at which the V cable may be -unreeled It will be noted that l the post is ofsuch la height that an operator,

when standing, may operate with eac-h hand a crank ihand-le similarly constructedand one connected to each end of the shaft'carwrying lthe drum and thereby operate both 5' cranks at one time, one hand pulling whi-le y frl-readily understood and also the manner of,4

putting the parts together for use or dis- '35 connecting the same when desired and re duce the same to a compact form for storage orv shipment.

2 what r Claim t0 be vnew is 1. A knockfdown derrick apparatus comv40 prising a post, a base therefor, complemental groove lbearing-members fastened in pairs to ,A the post, a swinging beam, a swiveled mem- .ber fixed to the latter andeadaptecl' to engage one pair of said bearing members, a strap 145 fastened to the 'beam and adapted to have a swivel connection with the other set of bear- `ing members upon the post, and anti-fri'c- "tion means fixed -to the beam and adapted to engage the bearing members I against which saldswivel member contacts.

2. A 'knock-down derrick apparatus com- .prisinga post, a base therefor, complemental groove bearing members fastened in pairs to the post, a swinging beam, a swiveled member fixed to the latter and adapted to engage one pair of said bearing members, a strap fastened to the beam and adapted to have a 'swivel connection with the other set of bearing members upon the post, an anti-friction roller ournaled upon the beam and adapted yto bear against-the pair of bearing members engaged by said swivel member.

3. A knock-down yhand derrick comprising a post, a base therefor, complemental vgrooved and flanged bearing members faskbearing members and in which said concaved portion of the bracket member engages.

4. A 'knock-down hand derrick comprising a post, a base therefor, complemental grooved and flanged bearing members fastened in pairs to the post, a beam, a bracket 'member fastened to the 'lower end thereof and having a concaved end adapted to engage one of said pairs of bearing members,

bers.

In testimony whereof I hereunto affix my signature in the presence of two witnesses. JOHN L. TAYLOR. Witnesses:

J. BUTGHER, M. C. VAN TYNE.

Copies of this patent may b e obtained for veiceints each, by addressing the Commissioner of IE'atents, Washington, D. C. 

